703.15 0.0014222 0.18388 -14.70474 -14.80462 -14.75511 -14.65351 -14.60142 -14.49468 -14.54848
708.15 0.0014121 0.20763 -14.58321 -14.69732 -14.64083 -14.52446 -14.46459 -14.34147 -14.40359
713.15 0.0014022 0.23498 -14.45671 -14.58765 -14.52293 -14.38901 -14.31980 -14.17694 -14.24911
718.15 0.0013925 0.26448 -14.33367 -14.48333 -14.40948 -14.25589 -14.17615 -14.01081 -14.09445
723.15 0.0013828 0.29867 -14.20350 -14.37565 -14.29089 -14.11350 -14.02088 -13.82784 -13.92565
728.15 0.0013733 0.33861 -14.06432 -14.26392 -14.16590 -13.95919 -13.85050 -13.62258 -13.73829
733.15 0.0013640 0.38467 -13.91707 -14.15007 -14.03602 -13.79322 -13.66447 -13.39248 -13.53087
738.15 0.0013547 0.44117 -13.74975 -14.02663 -13.89170 -13.60075 -13.44473 -13.11203 -13.28177
743.15 0.0013456 0.50918 -13.56194 -13.89676 -13.73458 -13.37875 -13.18509 -12.76724 -12.98115
slope= -2674.60 -12920.12 -11181.29 -12025.47 -13865.32 -14861.00 -17000.41 -15906.40
inter= 4.02313 3.70559 1.10557 2.36865 5.11654 6.60136 9.78775 8.15897
r= 0.92180 0.99467 0.99908 0.99737 0.99110 0.98682 0.97666 0.98195
图3.19 丙烯酸-8-羟基喹啉合镧(Ⅲ)配合物ln(α/T2)与1/T的关系图
α为分解百分率,根据公式(85.53-T)/(85.53-57.74)可以求出不同温度下的分解百分率,然后根据尝试法,ln{-ln(1-α)1-n/T2}对1/T线性作图,将相关数据代入下列公式中,
当n=1时,ln{-ln(1-α)/T2}=ln{k0/β*R*(1-2RT/Ea)/Ea}-Ea/RT
当n≠1时,ln{-ln(1-α)1-n/T2}=ln{k0/β*R*(1-2RT/Ea)/Ea}-Ea/RT
我们可以算出,不同的反应级数所对应的斜率、截距、和线性回归系数,即:
反应级数 n=0 时,线性回归系数 r=0.99908
反应级数 n=0.5 时,线性回归系数 r=0.99737
反应级数 n=1.0 时,线性回归系数 r=0.99467 室温固相法合成稀土三元配合物(12):http://www.751com.cn/huaxue/lunwen_188.html